Self-Runner NS Coil Pulse Motor Live Video Stream. It's been going for months!

[dllabarre]

Thanks for the update here Don.  Love to know the answer to this. 

Also I did not move anything around the Faraday box.  I sat still.  See next post for why I wrote this.

Kindest regards,
Rosemary

This is another reason why I'm focusing on testing the magnetic properties of my coil.

I would see the digital meter move from 10mV to 100mV when connected to my coil by just getting up from my chair and walking past the coil.

This was before and after placing the coil in the Faraday cage.

Also seen similar effects with just waving my hand past the end of the coil.

After shorting my coil for 30 mins the effect diminished so I have to do more testing.
It could have been just an anomaly of using digital meters.

Once I get a sensitive analog meter I will test this again.

But the compass would respond to the coil in all conditions, in and out of the Faraday cage, even when the meter read 1-2mV.  This is why I want to focus on the magnetic properties.

DonL

[slapper]

If you have disks on each end of your core see if by applying pressure at each end inward
will change your voltage readings. Stubblefield had the advantage of using a bolt for the core
with a nut on the end. He could compress the iron/copper coil assembly by tightening his
bolt.

We know this should have an effect on the capacitance of the assembly. I'm looking into
these effects and how magneto restriction plays a role during polarity reversals.

A little over 2 minutes into lasersaber's '48 days' video he explains how polarity reversals
seem to help with effects: http://www.youtube.com/user/lasersaber#p/a/u/2/kbaub2kkkpA
Take a look at Lidmotor's 'scope shot' video he did for MK1.
http://www.youtube.com/user/Lidmotor#p/u/21/MGwylnFvfZo
We see that by adding charge to the coil a magnetic bias is set up to take advantage of
the polarity flipping characteristics.

Please take a look at a Wiegand wire and compare it to the Stubblefield assembly. When
the soft core polarity flips and causes the iron wire polarity flips an effect occurs that
can be picked up. http://www.overunity.com/index.php?topic=3500.msg255762#msg255762

Although adding galvanic approaches adds to more interesting effects using insulated wire
isolates the galvanic effects and we can study and test other effects more clearly.

For example: During polarity flipping of both core and the helically wrapped iron wire magneto
restriction events occur applying a sharp change in mechanical pressure on the copper wire
sandwiched between the iron wraps. These are some of the effects I'm looking into.

Take care.

nap

[IotaYodi]

While this field shrinks, the field is passing by the secondary in the opposite direction, and I would think that the voltage measured at the same point would be -1 Volt, relative to the other end, again.

Im assuming Inductive kickback or Voltage spikes like in a relay. When the switch is closed current is flowing in the copper and there is a magnetic field around the copper. When the switch opens the coppers magnetic field is collapsing inducing a voltage spike of reverse polarity. This voltage spike is much higher than the source voltage. If this coil works in a similar manner then that would account for the iron core not being permanently magnetized in one direction. Once again the windings are equal or unity and I dont consider the iron wire as a secondary in this coil. Iron conducts current but not to the extent of copper,but its magnetic field is much more intense. 

[dllabarre]

If you have disks on each end of your core see if by applying pressure at each end inward
will change your voltage readings. Stubblefield had the advantage of using a bolt for the core
with a nut on the end. He could compress the iron/copper coil assembly by tightening his
bolt.

nap

Sorry... 
I don't have disks on the ends of my coil because I only wound one layer.

I'm testing the differences between bare steel wire with enamel insulated copper wire vs bare steel wire with cotton insulated copper wire.

If I can use enamel insulated copper wire with the same results as cotton insulated copper wire then these coils can be made a lot less expensive.

DonL

[IotaYodi]

I would see the digital meter move from 10mV to 100mV when connected to my coil by just getting up from my chair and walking past the coil.

This was before and after placing the coil in the Faraday cage.

Also seen similar effects with just waving my hand past the end of the coil.

Im thinking this is from the electrostatic potential of the air as well as any magnetic field lines coming off the coil and any house wiring that might add to it. You are moving in a magnetic field possibly changing the field to an extent. If the coil is sitting on a wood table place your palms on it and apply pressure. Put your hands at different distances from the coil and see if it changes. Do this with your electric panel both on and totally off and take measurements to see the difference. I would be most interested in the readings of both with and without the Faraday. A little time consuming but the readings might be worth it.